Method of producing the shells of metal boxes



July 26, 1927.

A.` F. REILLY METHQD F PRoDUclNG THE SHELLS4 0F METAL BOXES 2 Sheets-Sheet- 1 Filed Now 29. 1926 g3 dd u.

ATORNEY 4 1,637 42 July 26 1927 A. F. RElLLY ,2

METHOD OF PRODUCING THE- SHELLS OF METAL BOXES Filed Nov. 29. i926 2 Sheets-Sheet 2,

/Z A I "Z I Y z 1w x a ATTORNEY -gitented July 26, 1927.

UNITED sriirss ALFRED F. REILLY, OF ATTLEBORO, MASSACHUSETTS.

. METHOD-OF PRODUCING- THE SHELLS OF METAL BOXES.

Application filed November 29, 1926. Serial No. 151,493.

Mv invention relates to the shells or bodies of metal boxes or cases and more particularl;T in practice is eiiiployed in the production of shells ot vanity cases.

The general object of my invention is to produce shells ot vanity cases 'from sheet metal by stamping or drawing 'the metal. a shell 'in which the initer :ill be perfect when the front is brought to final shape and soldered or brazed.

The invention especiallyv has lfoi' a purpose to incorporate an ornamental design in the sides of the box or shell and curry out the (2o-ordinated operations iii a manner to pre-- vent the stamping ol the des from dis torting the members oit' the blanic eiiibodying the design.

The nature ot' my invention audi its` |"listinguishing features and advantages will clearly appear as the description proceeds.

Reference is to be had to the accoi'npaiiring drawings forming a part ol this specilication` it being understood that the i'lrawiugs are mireli7 illustrative ot one example et the invention.

Figure 1 is a plan view et the blank resulting from the first operation in producing a shell for a vanity case in accordance with my method;

Figure Q is a plan view of the blank shown in Figure 1 after pressing a design iii the flanges or Wings representing the opposite sides and the opposite ends ot the blank;

Figure 3 is a plan View showing the blanl'; atterthe removal of the surplus material ot the side and end iiiembeis,said removal be ing produced by the third operation and tollowing the stamping of the design;

Figure 4l is a longitudinal. vertical section of the shell after the sides and ends have been bent up to positions to receive the solder;

Figure 5 is a plan View ot the shell :in the condition shown in Figure 4;

Figure G ,is a. plan View ot the shell in conn pleted form after bending up the side and end members and ai'ter the application oi the soldering iron or torch to the shell at the angles, following the application of the solder.

In the several figures the numeral indi- Cates the central panel of the blank which forms the bottom of the shell. The numeral.

11 indicates the side flanges or'wings to lorin the opposite sides ot the shell and the. numeral 'l2 indicates the end iianges or Wings to constitute the end members of the shell.

The blank shown in Figure 1 is produced i'iiping the saine 'trom sheet metal. In ieu e 2 the i'iuinei'al 13 indicates ornainental panels or Zones on the side members 11 and end members 12. It will be observed ironi said Figure 2 that the ornamental panels li-i are adjacent the inner edges of the .side members 11 and cnil members 12, lnaving surplus roues 111 and 112 on the side members and end iiienibers. respectively and laterally outward of the ornamental panels i3.

is important. in obtaining accuracy in rm and'dimensions of the members 11 lill in the final, finished article shown Figure G, that the distort-ion of the blank more or less 'by the operation of producing the ornamental design, be recognized. The stamping of the ornamental design in the metal prior to removal of the surplus metal insures that the production oit the members $11 Lind 12 with the ornamental design emooiiied therein results in their being minus all surplus n'iaterial, insures accurati,7 in the shape and dimensions oi the members 11 and i12 and enables the 'Finished article of Figure G to be brought to perfection.

The linal step oit' soldering following the placing oit solder at the angles of the shell ari the and aid or' pliers. The adjacent ends of the side and the end members ol the shell are held in the proper relation until the solder sweating or brazing has been performed.

The foregoing description explains mv novel method when the shell is produced buy stamping. as distinguished from drawing the slieli into form.

lllhat l claim is:

1. In a method oi'' producing shells for ianity cases and similar articles7 the steps ot' proi'liicing from sheet .material a blank presenting panels along the edges thereof producing ornan'ieutal zones on said panels inward otl the outer edges of the panels, removing the surplus material laterally outward ot said ori'iamental'zones and then bending up the said panels.

In a method ot producing shells for in practice carried out manually With the between adjacent panels, placing solder on the bent-up article at the angles thereof, 10 further bending the panels inwardly to brin their opposed edges into closed relation, and linally causing the solder to unite said opposed edges.

ALFRED F. REILLY. 

